typescript wrap Array Generic type

Question

I'd like to wrap the generic Array in typescript. We have code as below:

    _bindings: Array<BindingDescription>;

What I want is to have a wrapper around Array so I can use

    _bindings: BindingDescriptionCollection;

I'm trying to wrap it as below:

    export class BindingDescriptionCollection implements Array<BindingDescription> {}

But it need to implements all the functions and properties in Array.

Is there any easier way?

Answer 1

Are you looking to add additional functionality or simply just use a cleaner name? If it's the latter, you can use a type alias :

type BindingDescriptionCollection = Array<BindingDescription>;

Answer 2

But it need to implements all the functions and properties in Array. Is there any easier way?

You can use extend to inherit the functionality:

interface BindingDescription{}
class BindingDescriptionCollection extends Array<BindingDescription> {}